you could see the semis were swerving. >> reporter: it's the city's first snowstorm of the season. many are bracing for more to come. >> if you wanted a white christmas, there you go. >>> the gulf coast is even bracing for the worst. >> including some christmas week tornadoes, believe it or not. andrew has the latest now from accuweather. >> while most of the nation will be relatively tranquil for the holidays, we're tracking one disturbance that will give us unsettled weather across portions of the gulf coast. late tonight, the houston area, we'll see thunderstorms popping up, spreading eastward throughout your christmas tuesday. louisiana, mississippi, alabama, georgia, interstates 10 and 20, torrential downpours, the threat for tornadoes. so a very destructive storm system on this saturday. the highest threat for tornadoes we are looking at around new orleans, mobile, right along interstate 10 and the western panhandle of florida. so definitely be on alert throughout christmas tuesday. we're looking for good snow across portions of the plain. >>> here's the rest of your christma